Under brewery No. 3 are given determinations for ales prepared from 80 per cent of malt and 20 per cent of cerealin; 78 per cent of malt and 22 per cent of cerealin; 75 per cent of malt and 25 per cent of cerealin; and 65 per cent of malt, 28 per cent of cerealin, and 7 per cent of brewer's sugar.

The main object of this investigation was to find, if possible, a means of distinguishing beers and ales made entirely from malt from those made from malt together with other cereal products, such as rice, corn, and cerealin.

That is, in the second product there is, in the same volume of liquid, the extractive material from 68 pounds of malt and 23 pounds of cerealin, while in the first product there is present the extractive material from only 58 pounds of malt.

The most satisfactory way to have tested this question of the effect of raw materials on the finished product would have been to make a series of worts with exactly the same percentage of solids, some of pure malt and others of mixtures of pure malt and corn, rice, and cerealin; then a direct comparison between the results would have shown the effects of these various materials.

In none of the malt-and-corn beers is the ash, protein, or phosphoric acid so high as the minimum found in the all-malt beers, and the same is true of the mixtures of malt and cerealin and of malt, brewer's sugar, and cerealin.

In order to show the effects on the finished beers or ales of the use of corn, rice, cerealin, and brewer's sugar as substitutes for malt in the worts, Table VII has been prepared, giving the results of analyses of a number of brews made in different breweries and from varying kinds and amounts of raw materials.

This, however, can be readily explained when it is considered that in the case of brewery No. 2 in the all-malt beers (sample No. 22017-D) only 58 pounds of malt were used in the preparation of a barrel of beer containing 31 gallons; while in the case of sample No. 29512-B there were used, in preparing a barrel of similar capacity, 68 pounds of malt and 23 pounds of cerealin.